sPHENIX is a new detector at RHIC.

["Huang, Jin" <jhuang AT bnl.gov>]

Dear collaborators 

Welcome to join the BNL NP Seminars tomorrow on "The first suite of physics results from sPHENIX", presented by Blair Seidlitz  

• Tuesday, May 6, 2025, 11:00 am EDT
• Local at BNL: Small Seminar Room, Bldg. 510 
• Remote :  https://bnl.zoomgov.com/j/1618286847?pwd=N20xUlNMYjhJVThoQkp5TktJdmQ5dz09
• Indico : https://indico.bnl.gov/event/27647/

Cheers

Jin & Megan

 

______________________________

 

Jin HUANG

 

Physicist, Ph.D.

Brookhaven National Laboratory

Physics Department, Bldg 510 C

Upton, NY 11973-5000

 

Office: 631-344-5898

Cell:   757-604-9946

______________________________

 

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From: physics-seminars-l-request AT lists.bnl.gov on behalf of elamar AT bnl.gov
Sent: Monday, May 5, 2025 8:03 AM
To: physics-seminars-l AT lists.bnl.gov
Subject: Physics Seminars line up for the week

Nuclear Physics Seminar
"The first suite of physics results from sPHENIX"
Presented by Blair Seidlitz, Columbia University

Tuesday, May 6, 2025, 11:00 am — Small Seminar Room, Bldg. 510

Abstract: The sPHENIX detector, located at the RHIC, just finished recording its first physics data set.  This dataset includes high-statistics proton-proton collisions at 200 GeV as well as Au+Au collision at 200 GeV. The sPHENIX experiment is particularly interested in physics measurements centering around jet structure, heavy flavor and quarkonia, and proton spin structure, with an emphasis on how these topics can be used to probe the properties of the quark gluon plasma.  Within the last month, many of the first preliminary physics results striving towards these goals have been released.  This seminar presents all these measurements. Including the measurement of jet spectra and dijet properties as well as direct-photon spectra all in p+p.  Also shown is the neutral-meson single-spin asymmetry in polarized p+p.  Third, tracking performance will be highlighted in progress towards precision high-statistics heavy flavor measurements, including first D meson and Lambda charm baryon mass peaks.  Finally, the first two sPHENIX publications are highlighted which are two "standard-candle" measurements of transverse energy and charged particle density in Au+Au collisions.   These results demonstrate sPHENIX's capabilities and potential for detailed studies of the interaction of these probes and the quark gluon plasma with the up-coming high-statistics Au+Au  RHIC running.

Hosted by: Takao Sakaguchi

Join Videoconference: https://bnl.zoomgov.com/j/1618286847?pwd=N20xUlNMYjhJVThoQkp5TktJdmQ5dz09
More Information: https://indico.bnl.gov/event/27647/


NNSA - Remote Quantum Sensing for Nuclear Materials Seminar
"Optics with a Twist for Material Characterization"
Presented by Dr. Moussa N'Gom, Rensselaer Polytechnic Institute

Tuesday, May 6, 2025, 1:00 pm — Large Conference Room, Bldg. 535

Optical wavefront shaping (WFS) empowers unprecedented spatiotemporal control of light fields, a
capability propelled by advances in spatial light modulators (SLMs). These versatile devices enable the generation of arbitrarily structured light fields, facilitating precise manipulation of both classical light and quantum states such as single photons.

In my work, I employ WFS techniques to correct phase distortions induced by scattering or optical
imperfections. Through iterative optimization of the input wavefront or conjugation of the scattering
medium's transmission matrix, we achieve unparalleled command over light-matter interactions. This strategy not only enables deep-tissue optical delivery and enhanced detection but also replaces traditional optical elements with dynamically reconfigurable scattering media.

I will discuss how WFS unlocks and amplifies the suppressed nonlinear responses of single and few-layer
transition metal dichalcogenides (TMDs), yielding dramatic improvements in conversion efficiency. This all-optical tuning approach paves the way for dynamic signal routing and on-demand enhancement in nanophotonic systems.

Furthermore, I will present our breakthrough in transmitting structured light through multimode fibers, a development with profound implications for long-distance communications and minimally invasive medical technologies.

Finally, I will demonstrate how second-harmonic generation (SHG) of Bessel-Gauss beams, when perturbed
by asymmetric aberrations from an elliptic axicon, generates striking beam profiles. This discovery could inspire novel methods for encoding logical states of light and advance quantum technologies, including the preparation of Gottesman-Kitaev-Preskill (GKP) qubits and the generation of high-dimensional entangled photon pairs.


Hosted by: Donald Hornback



Physics Colloquium
"Cosmology from Three Years of DESI Spectroscopy"
Presented by Prof. Kyle Dawson, Univ. of Utah

Tuesday, May 6, 2025, 3:30 pm — Large Seminar Room, Bldg. 510

Please note that self-served coffee and cookies will be in the seminar lounge at 3:00 pm.

Abstract:
Over a five-year period, the Dark Energy Spectroscopic Instrument (DESI) will spectroscopically classify nearly 40 million galaxies and quasars over 1/3 of the sky and to redshifts z < 3.5. The DESI collaboration has completed measurements of the baryon acoustic oscillation (BAO) feature and more generally, of large-scale structure, using data from the first three years of observation. In this talk, I will present those measurements and their implications for our understanding of the cosmological model. In doing so, I will discuss the DESI measurements with respect to the hints of tension that have been reported in the Hubble Constant and with LCDM.

Non-BNL individuals interested in attending this event are reminded that gate passes should be requested.

Hosted by: Raju Venugopalan

Join Videoconference: https://bnl.zoomgov.com/j/1617489674?pwd=aTmhSZ1ncKD7wWlqQ2iHfoTniiAlOX.1
More Information: https://indico.bnl.gov/event/27724/


Special NT/RBRC Seminar
"TBA"
Presented by David Rogerson

Wednesday, May 7, 2025, 11:00 am — Bldg. 510, CFNS Library



Hosted by: Jorge Luis Dasilva Golan

Join Videoconference: https://bnl.zoomgov.com/j/1614715193?pwd=WkwxODVWdzZzb29zQnZRVGp3VTBDQT09
More Information: https://indico.bnl.gov/event/27742/


Environmental Science and Technologies Department Seminar
"Aerosols and Droplets: Fundamental Particles in our Evolving World"
Presented by Akua Asa-Awuku, University of Maryland

Thursday, May 8, 2025, 11:00 am — Large Conference Room, Bldg. 490



Hosted by: Ogo Enekwizu



HET seminar
"Top quark physics (preliminary)"
Presented by Manfred Kraus, UNAM Mexico

Thursday, May 8, 2025, 11:00 am — Small Seminar Room, Bldg. 510



Non-BNL individuals interested in attending this event are reminded that gate passes should be requested.

Hosted by: Marvin Schnubel

Join Videoconference: https://bnl.zoomgov.com/j/1605506805?pwd=AA9rwL4hM5AwG2b0zEwDdXjzhvJjSz.1
More Information: https://indico.bnl.gov/event/26440/


RBRC seminar
"TBA"
Presented by Paul Caucal

Thursday, May 8, 2025, 12:30 pm — Building 510, Room 2-160



Hosted by: Jakob Schoenleber

Join Videoconference: https://bnl.zoomgov.com/j/1600983728?pwd=RAD7OLcqre7Ycsp6JfFp6HAnpyLxex.1
More Information: https://indico.bnl.gov/event/27063/


Special Laboratory-wide Colloquium
""Imaging the Higgs Boson: Revealing the secrets of the cosmos""
Presented by Presented by Syed Haider Abidi, Brookhaven National Laboratory - OMEGA Group, Physics Department

Thursday, May 8, 2025, 1:00 pm — Berkner Hall, Room B

The Standard Model (SM) is one of the most thoroughly tested theories in physics, answering some of the most fundamental questions about the cosmos. Yet, many open questions remain, such as how enough matter could survive after the Big Bang to form galaxies and nebulae. The Higgs boson, the final piece of the SM to be discovered, opens a unique portal to new physics that could help solve these mysteries.

However, to unlock this potential, a precise measurement of the Higgs boson mass is required, as it is the only free parameter within the Higgs sector of the SM. Once this value is known, other properties of the Higgs boson can be predicted and compared with experimental results, paving the way to discover new physics beyond the Standard Model.
In this talk, I will use images of galaxies and nebulae captured from my backyard to illustrate why a precise Higgs mass measurement is crucial. I'll show how sub-percent-level calibrations of the ATLAS detector at CERN's Large Hadron Collider (LHC), combined with cutting-edge AI/ML methods, allow us to measure the Higgs mass with unprecedented accuracy. To further improve this measurement, I'll discuss the upcoming upgrades to the ATLAS detector, particularly the real-time triggering system, which will enable us to collect 10 times more data at the High-Luminosity LHC, enhancing our ability to search for answers to the universe's most fundamental questions. These upgrades will also serve as an important testing ground for developing the next generation of real-time computing technologies, including running modern AI/ML algorithms on efficient analog computing platforms, which can further amplify the physics potential of particle detectors.



Hosted by: Michael Begel



NT/RBRC seminar
"Reframing azimuthal modulations in hard exclusive diffraction processes"
Presented by Dr. Zhite Yu, Jefferson Laboratory

Friday, May 9, 2025, 11:00 am — Bldg. 510, CFNS Library

Abstract: I will present a new formulation of azimuthal modulations in hard exclusive diffraction processes. These modulations are crucial for the phenomenological extraction and separation of various generalized parton distributions (GPDs). A key example is deeply virtual Compton scattering (DVCS), which will play an important role at the Electron-Ion Collider. Conventionally, GPDs are extracted from the angular modulations of DVCS in the Breit frame. However, the Bethe-Heitler (BH) subprocess interferes with DVCS, contaminating its azimuthal modulations and making it difficult to extract GPDs cleanly. We introduce a new formalism with an optimized choice of frame to describe azimuthal distributions. We demonstrate that this approach is more suitable for experimental analyses, as it allows for a consistent and uniform separation of contributions to the physical cross section from GPD-sensitive subprocesses (such as DVCS) and GPD-insensitive subprocesses (e.g., BH).

Hosted by: Yoshitaka Hatta

Join Videoconference: https://bnl.zoomgov.com/j/1614715193?pwd=WkwxODVWdzZzb29zQnZRVGp3VTBDQT09
More Information: https://indico.bnl.gov/event/27315/


HET/BNL Lunch Time Talk
"TBA"
Presented by Clara Lavinia Del Pio

Friday, May 9, 2025, 12:00 pm — Bldg. 510, Room 2-160



Hosted by: Peter Denton

Join Videoconference: https://bnl.zoomgov.com/j/16169753298?pwd=N3Q5ZVhKR0k3UGpKeXpBNVZVVnYwQT09
More Information: https://indico.bnl.gov/event/26016/


Thank you,
Erica Lamar
Brookhaven National Laboratory
Physics Department
Sr. Administrative Assistant to the Chair's Office
Building 510A
Upton, NY 11973-5000
(631) 344-2585
elamar AT bnl.gov<mailto:elamar AT bnl.gov>